Quotes About Opposable thumb

In my view there is something essentially special, after all, about human beings. We were the first species on Earth to combine a cognitive function and an effective opposable appendage (the thumb), so we were able to create technology that would extend our own horizons. No other species on Earth has accomplished this.

Earth's ancestral vertebrate had five digits, not six, and no Earthly animal had ever evolved with more than five. The alien's digits were arranged as four fingers flanked on either side by an opposable thumb.

Computers seem a little too adaptively flexible, like the strange natives, odd societies, and head cases we study in the social sciences. There's more opposable thumb in the digital world than I care for; it's awfully close to human.

I had learned that a dexterous, opposable thumb stood among the hallmarks of human success. We had maintained, even exaggerated, this important flexibility of our primate forebears, while most mammals had sacrificed it in specializing their digits. Carnivores run, stab, and scratch. My cat may manipulate me psychologically, but he'll never type or play the piano.